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Papillomavirus sequences integrate near cellular oncogenes in some cervical carcinomas

Journal Article · · Proc. Natl. Acad. Sci. U.S.A.; (United States)
; ; ; ;
The chromosomal locations of cellular sequences flanking integrated papillomavirus DNA in four cervical cell lines and a primary cervical carcinoma have been determined. The two human papillomavirus (HPV) 16 flanking sequences derived from the tumor were localized to chromosomes regions 20pter..-->..20q13 and 3p25..-->..3qter, regions that also contain the protooncogenes c-src-1 and c-raf-1, respectively. The HPV 16 integration site in the SiHa cervical carcinoma-derived cell line is in chromosome region 13q14..-->..13q32. The HPV 18 integration site in SW756 cervical carcinoma cells is in chromosome 12 but is not closely linked to the Ki-ras2 gene. Finally, in two cervical carcinoma cell lines, HeLa and C4-I, HPV 18 DNA is integrated in chromosome 8, 5' of the c-myc gene. The HeLaHPV 18 integration site is within 40 kilobases 5' of the c-myc gene, inside the HL60 amplification unit surrounding and including the c-myc gene. Additionally, steady-state levels of c-myc mRNA are elevated in HeLa and C4-I cells relative to other cervical carcinoma cell lines. Thus, in at least some genital tumors, cis-activation of cellular oncogenes by HPV may be involved in malignant transformation of cervical cells.
Research Organization:
Institut fuer Virusforschung, Heidelberg, West Germany
OSTI ID:
5878703
Journal Information:
Proc. Natl. Acad. Sci. U.S.A.; (United States), Journal Name: Proc. Natl. Acad. Sci. U.S.A.; (United States) Vol. 84:4; ISSN PNASA
Country of Publication:
United States
Language:
English

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Related Subjects

550401* -- Genetics-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ANIMAL CELLS
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARCINOMAS
CHEMICAL ACTIVATION
DAYS LIVING RADIOISOTOPES
DISEASES
DNA SEQUENCING
GENES
GENETIC MAPPING
HELA CELLS
HYBRIDIZATION
ISOTOPES
LIGHT NUCLEI
MAMMALS
MAN
MAPPING
MICROORGANISMS
NEOPLASMS
NUCLEI
ODD-ODD NUCLEI
ONCOGENES
ONCOGENIC VIRUSES
PARASITES
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
PRIMATES
RADIOISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
TUMOR CELLS
VERTEBRATES
VIRUSES